After pregnancy, it is common for the abdomen not to look or feel exactly as it did before. One possible change is diastasis recti abdominis (DRA): an increased separation between the two rectus abdominis muscles on either side of the midline. It may appear as a ridge or bulge during certain movements, be felt on palpation, or be identified during a clinical assessment. But the presence of a gap does not, by itself, measure your health, strength or recovery.
The topic is highly visible on social media, where parents may encounter promises to “close your diastasis in 30 days”, lists of banned exercises and programmes presented as universal solutions. Scientific evidence is much more nuanced. Definitions and measurement methods vary, exercise trials are heterogeneous, and the relationship between the width of the gap, symptoms and function is not straightforward.
This guide therefore takes a cautious approach: understanding what DRA is, what a measurement can and cannot tell you, how to return to movement progressively, and when assessment by a midwife, doctor or physiotherapist may be useful. It is general information rather than an individual diagnosis or rehabilitation programme.
What is diastasis recti abdominis?
The two rectus abdominis muscles are separated by a connective-tissue structure called the linea alba. During pregnancy, the abdominal wall adapts to the growing uterus. The linea alba stretches and the distance between the rectus muscles can increase. This is a common adaptation to pregnancy rather than evidence that the body has “failed”.
After birth, the distance may decrease naturally over the following weeks and months, but it does not necessarily return to an arbitrary “perfect” number. Some people retain a visible separation without major symptoms. For others, a sense of weakness, discomfort, body-image concerns or a coexisting hernia is more clinically relevant than the measurement itself.
The European Hernia Society (EHS) guideline published in 2021 proposed defining rectus diastasis as a separation wider than 2 cm in order to standardise terminology. The authors also emphasised that the available literature was limited in quality and most recommendations were weak. The 2 cm threshold should therefore not be treated as a magical dividing line between “healthy” and “unhealthy” in every postpartum person.
Key reference: EHS proposes more than 2 cm as a consensus definition while noting that evidence supporting many diagnostic and management decisions is limited. European Hernia Society guidelines on management of rectus diastasis.
Is diastasis the same as a hernia?
No. In diastasis, the midline is widened but there is not necessarily a true fascial defect through which tissue protrudes, as occurs with a hernia. DRA can, however, coexist with an umbilical or epigastric hernia.
This distinction matters because management differs. A focal lump around the navel, unusual pain or a changing tender mass deserves medical assessment rather than an assumption that it is “just diastasis”. Severe pain, a hard or non-reducible mass, vomiting or feeling acutely unwell require urgent medical advice.
Why does it develop during or after pregnancy?
Pregnancy places substantial mechanical and hormonal demands on the abdominal wall. The abdomen expands, muscles and connective tissues adapt, and internal pressure changes. DRA is therefore common around pregnancy and does not mean that someone caused it by doing the wrong exercise or failing to “engage their core”.
Researchers have examined factors such as number of pregnancies, age, infant size, body weight and activity, but associations are not simple enough to predict reliably who will have persistent DRA. Blaming one behaviour or one missed exercise is not supported by the evidence.
How can you tell if you have DRA?
Some people notice a ridge or “doming” along the midline when sitting up, coughing or exerting themselves. Others feel a space between the muscles when they gently palpate the abdomen. Some have no obvious sign at all.
The popular “finger-width” test can increase awareness but is imprecise. Finger sizes differ, pressure is not standardised and the measurement changes with location, breathing and muscle contraction. The EHS guideline considers clinical examination adequate in many situations and suggests imaging such as ultrasound when a more precise measurement is needed.
A simple self-check without chasing a perfect number
Lie comfortably on your back with your knees bent and breathe normally. Gently place your fingers along the midline around the navel. If comfortable, slightly lift your head or shoulders and notice how the abdominal wall behaves. You can also feel above and below the navel.
This does not establish a diagnosis and there is little value in repeating it obsessively. It may help you notice a ridge, discomfort, difficulty managing pressure or a marked separation. If you are concerned, a professional can assess much more than width: breathing, strength, symptoms, pelvic-floor function and the demands of your daily activities.
Is the width of the gap enough to decide whether treatment is needed?
No. This is an important point that online content often oversimplifies. A larger inter-rectus distance does not automatically mean more pain or disability. Systematic reviews have found mixed results regarding relationships between DRA, low-back pain, pelvic-floor disorders and quality of life.
A 2023 systematic review specifically examining DRA and low-back pain did not support a simple consistent relationship. Earlier systematic research on musculoskeletal dysfunction, pain and quality of life similarly found heterogeneous evidence.
A useful assessment therefore considers several dimensions: pain, sense of trunk stability, ability to lift and move, pelvic-floor symptoms, body-image distress, the presence of a hernia and personal goals. Reducing recovery to “how many centimetres?” can miss what matters most to the individual.
What research does not support: a wider gap does not automatically mean more low-back pain or greater dysfunction. Systematic review – Is Diastasis Recti Abdominis Associated With Low Back Pain?.
Does DRA close on its own?
Some spontaneous narrowing is common after pregnancy, particularly during the first months, but the amount varies. Tissues continue to recover for a long time after birth, so a measurement taken very early postpartum does not necessarily predict the situation months later.
There is no universal date by which the abdomen should have “finished recovering”. Mode of birth, wound healing, sleep, nutrition, pain, previous pregnancies and return to activity all influence the experience. Comparing your abdomen with social-media images taken at six weeks postpartum has no medical value.
Do you have to wait for rehabilitation before moving?
Not necessarily. Returning to movement after birth should be progressive and adapted to symptoms, healing and the obstetric context. Light activity such as walking can often resume when you feel able, but advice may differ after caesarean birth, major perineal injury, significant complications or other medical conditions.
In France, a postnatal medical consultation takes place in the weeks after birth. Assurance Maladie states that pelvic-floor and abdominal rehabilitation can be prescribed when necessary. They are not required in exactly the same way for every woman; symptoms and assessment guide the decision.
Our guide Returning to exercise after childbirth: how to progress without rushing covers the broader return to activity. If you have urinary leakage, pelvic heaviness or pain, our article Pelvic-floor recovery after childbirth provides additional context.
French healthcare context: Assurance Maladie explains that postnatal review takes place in the weeks after childbirth and that pelvic-floor and abdominal rehabilitation may be prescribed when needed. Assurance Maladie – Accouchement et retour à domicile.
Which exercises are best for “closing” a diastasis?
The current scientific answer is less dramatic than many viral videos: there is no single programme that has been shown to work best for everyone or to guarantee closure. Studies have tested deep and superficial abdominal training, pelvic-floor exercises, breathing techniques, hypopressive exercise, yoga, functional strengthening, abdominal binding, electrical stimulation and combinations of these approaches.
A 2023 systematic review of 16 randomised trials found a small average reduction in inter-rectus distance with abdominal exercise compared with usual care, but the authors concluded that the change was not clearly clinically meaningful. A larger 2025 review also reported reductions with some conservative approaches, while rating the certainty of the evidence as very low.
In 2026, one updated systematic review and meta-analysis concluded that evidence did not support exercise as a stand-alone treatment specifically for anatomical reduction of the inter-rectus distance, although exercise may still provide functional or symptomatic benefits. Another 2026 meta-analysis found an average reduction in distance with structured exercise but no demonstrated improvement in a disability score. These apparently different conclusions reflect differences in included studies, measurement methods and statistical approaches.
The balanced conclusion is therefore neither “exercise is useless” nor “this exercise closes DRA”. Movement and strength training can be part of postpartum recovery, but gap width is only one outcome and current evidence cannot promise a specific anatomical result.
State of the evidence: recent reviews produce somewhat different estimates and repeatedly highlight heterogeneity and low certainty in parts of the literature. See the 2023 review and the 2026 update.
How can you return to core strengthening in a practical way?
If recovery is uncomplicated and you have not been given a contraindication, the goal can be to rebuild tolerance to load rather than search for the “perfect” exercise. A progression might include:
- comfortable breathing without prolonged breath-holding;
- gentle mobility and walking as tolerated;
- light, controlled abdominal contractions in comfortable positions;
- functional exercises that resemble daily tasks such as standing up, carrying progressively or pushing;
- a gradual increase in resistance when no concerning symptoms appear.
A physiotherapist with postpartum expertise can adapt exercises to your symptoms and goals. They can also help coordinate breathing, abdominal-wall function and pelvic-floor activity without imposing one rigid strategy on everyone.
Do you have to “pull your stomach in” during every effort?
No. The abdominal wall needs to generate and manage pressure, not remain contracted all day. A gentle cue to activate the abdominal wall may help while learning a movement, but constantly “drawing the belly button in” is neither necessary nor realistic.
Breathing also matters. Habitually holding the breath can raise internal pressure substantially, but forcefully exhaling through every movement is not a universal rule either. Technique should be adapted to the task, the load and your symptoms.
Are crunches forbidden?
There is no strong evidence supporting a lifelong ban on one specific movement for every person with DRA. Some trunk-flexion exercises may create visible doming or simply be too demanding early in recovery for some people. Others may be able to reintroduce them gradually as part of a strength programme.
A more useful question than “is this exercise banned?” is “is it appropriate for my current capacity, can I do it without pain or troubling symptoms, and does it progress me toward my goals?” Individual medical or physiotherapy advice takes priority after surgery, complicated caesarean birth, hernia or persistent pain.
What about hypopressive exercises?
Hypopressive techniques are often marketed as the preferred postpartum solution. They have been studied, but current evidence does not establish them as a universally superior method for reducing DRA. A 2024 scoping review highlighted the wide variation in rehabilitation protocols and the lack of consensus on a best programme.
A randomised trial published in 2026 reinforces this cautious interpretation. In 44 postpartum women between 45 days and 6 months after birth who had DRA, a supervised 12-week hypopressive programme did not produce a significantly greater reduction in inter-rectus distance than the control group. Some measures of abdominal performance, body appreciation and pelvic-floor symptoms did improve. Possible functional benefits should therefore not be confused with proven anatomical “closure”. Moreira et al. – Randomized trial, 2026.
They may suit some people when properly taught, but they should not be presented as compulsory or as a guaranteed way to close a gap.
Can an abdominal belt or binder help?
A belt may provide a sense of support or comfort for some people, particularly after surgery or during selected activities, but it has not been shown to mechanically “glue” the rectus muscles back together. Trials of abdominal binding are heterogeneous.
A 2025 meta-analysis comparing exercise and binding found different effects depending on where the distance was measured and did not demonstrate a clear functional benefit. This does not mean that a belt is always useless; it means that it should not replace movement, clinical assessment or progressive rehabilitation.
Avoid assuming that tighter compression produces better recovery. In early postpartum, after caesarean birth or with pelvic symptoms, ask for advice before using firm compression for prolonged periods.
How does the pelvic floor fit in?
The diaphragm, abdominal wall and pelvic floor all contribute to managing pressure. Having DRA does not automatically mean that the pelvic floor is weak, and pelvic-floor symptoms do not automatically imply a large diastasis. It is still sensible to assess both systems if you have urinary or bowel leakage, pelvic heaviness, pain, discomfort during sex or major symptoms with exercise.
A large systematic review and meta-analysis of exercise in the first postpartum year found moderate-certainty evidence that pelvic-floor muscle training reduced the odds of urinary incontinence. Evidence regarding DRA itself was less certain.
When should you seek professional assessment for DRA?
Assessment is useful if the bulging concerns you, if you have pain, substantial weakness or functional difficulty, if you suspect a hernia, if you want to return to impact or heavy lifting and are unsure how to progress, or if you have associated pelvic-floor symptoms.
Seek advice as well if postpartum recovery is not following a reassuring course, a caesarean scar is painful or looks unusual, or movement causes persistent pain. Our guide Recovery after caesarean birth: pain, scar and activity covers that situation specifically.
In France, the postnatal consultation is an appropriate time to raise concerns about the abdominal wall, but there is no need to wait for that appointment if symptoms are worrying.
When is surgery considered?
Surgery is not the first-line response to ordinary postpartum DRA. It may be considered in selected cases when significant symptoms persist despite conservative management or when a midline hernia is also present. EHS guidance suggests considering physiotherapy before surgical treatment, while acknowledging the limited evidence base.
Surgical decisions depend on future pregnancy plans, hernia status, symptoms, tissue characteristics, expectations and specialist assessment. An online centimetre threshold is not enough to decide whether someone needs an operation.
Does DRA prevent a return to running or strength training?
Not automatically. Return to sport depends more broadly on healing, tolerance to load, pelvic and musculoskeletal symptoms, and previous activity level. The 2025 Canadian guideline on postpartum physical activity recommends gradual, individualised and symptom-based progression. It does not treat the mere presence of DRA as a blanket prohibition on exercise.
For running, jumping or heavier resistance work, an intermediate progression can be helpful. If you notice pain, pelvic heaviness, leakage, vaginal bleeding that increases with activity, or difficulty controlling abdominal pressure, seek assessment before progressing further.
Can the abdomen remain rounded without a large diastasis?
Yes. Postpartum abdominal appearance is influenced by many things: early uterine involution, skin, fat tissue, posture, digestion, muscle condition, scars and individual body shape. A rounded abdomen is not a DRA diagnostic test.
Conversely, a slim person may have a measurable diastasis with no symptoms. Visual comparisons and programmes that use appearance as the sole marker of health should be treated cautiously.
Does “doming” mean an exercise is dangerous?
A ridge or dome along the midline is often presented on social media as an absolute warning sign. In reality, it mainly shows how internal pressure and abdominal-wall tension are being managed during a particular effort. It can be a useful cue to modify an exercise, but it does not prove by itself that tissue damage is occurring.
If a movement produces marked doming together with pain or pelvic symptoms, reducing the range, load or difficulty may be sensible. A physiotherapist can also help you explore different breathing and positioning strategies. The goal is not to eliminate every visible change in abdominal shape at all times, but to build comfortable, progressive function.
How do professionals measure DRA?
Assessment may use palpation, calipers or ultrasound. Research studies do not always measure at the same location: some use the navel, others points above or below it. Measurements are also not always taken in the same body position or at the same phase of breathing or muscle contraction. This is one reason why comparing two numbers from different methods can be misleading.
Ultrasound can provide a more standardised measurement in selected situations, but it is not necessary for everyone. If the main problem is functional — pain, pelvic heaviness, difficulty lifting or returning to sport — the clinical assessment should remain broader than a distance measured in millimetres.
What can a strengthening progression look like?
There is no universal protocol, but progression can begin with simple tasks and gradually move toward the actual demands of daily life. Someone might start with controlled floor-based movements, then progress to bridges, quadruped or standing exercises before gradually adding light resistance.
Later, the programme can include real-life tasks: carrying an infant car seat, lifting the baby from the floor, pushing a stroller uphill, climbing stairs or returning to strength training. Progress should be based on tolerance, symptoms and movement quality rather than on whether an exercise is labelled “for diastasis”.
If your goal is running or impact sport, it may help to build through brisk walking, stairs, small hops and directional changes while monitoring pelvic-floor symptoms, pain and abdominal-wall tolerance. Persistent symptoms deserve adjustment or assessment.
Body image: DRA should not become a “fault” that must be fixed
The language around postpartum bodies can be harsh: “broken core”, “separated abs”, “body to repair”. Yet DRA is closely related to the normal adaptation of the abdominal wall to pregnancy. It can become clinically important when it causes symptoms or significant distress, but its mere presence does not mean the body is damaged.
Recovery is not the same as regaining a flat stomach. Sleep, pain, strength, comfort in daily activities, pelvic-floor function, energy and mental health matter too. If measuring the gap is becoming distressing or causing you to avoid normal activity excessively, discussing that with a professional can help put the number back into perspective.
What if DRA is still present a year after birth?
Persistence does not automatically mean surgery. Many people live with a stable, functional diastasis. If you have no pain or limitation, specific treatment may not be necessary. If you are bothered by symptoms or function, an assessment can identify what may be modifiable: strength, movement strategy, load tolerance, pelvic-floor symptoms or an associated hernia.
If surgery is being considered, future pregnancy plans, the type of repair, symptoms and any hernia should be discussed with a specialist. EHS guidance does not support automatic surgery based on width alone.
FAQ: diastasis recti after pregnancy
How many finger-widths count as diastasis?
The finger test is approximate. EHS proposes a definition above 2 cm, but diagnosis and management should not be based on a finger count alone.
Can I start exercises in the first few weeks?
Light movement and gradual progression may be possible early after an uncomplicated birth, but mode of delivery, wounds, bleeding and symptoms matter. Ask for professional advice if you are unsure.
Do crunches always make DRA worse?
No. Evidence does not support a universal ban. They may be too demanding at some stages and should be reintroduced according to capacity and symptoms.
Can a binder close the gap?
Evidence does not show that a binder alone creates reliable long-term anatomical closure. It may provide comfort for some people but does not replace appropriate rehabilitation.
Should I measure my DRA every week?
Usually not. Frequent measurements can overemphasise a few millimetres whose reliability depends on technique. Function and symptoms are at least as important.
Does DRA inevitably cause back pain?
No. Systematic reviews have not found a consistent relationship. Low-back pain has many possible causes and deserves its own assessment.
Can I have another pregnancy with DRA?
DRA itself does not usually prevent a future pregnancy. If you have a hernia, major symptoms or are considering surgery, discuss future pregnancy plans with the relevant clinician.
How long does recovery take?
There is no single timeline. Tissue and functional recovery continue for months and vary between individuals. Sustainable progression is more useful than racing toward a perfect measurement.
Key takeaways
- DRA is common around pregnancy and refers to widening of the midline between the rectus abdominis muscles.
- The EHS definition of more than 2 cm is a consensus threshold, not an individual verdict on health.
- Gap width alone does not explain pain, strength or function.
- Exercise can support recovery, but no method has been robustly shown to “close” DRA in everyone.
- Recent findings on reduction in inter-rectus distance are heterogeneous and often based on low-certainty evidence.
- Crunches, hypopressives and abdominal binders are neither universal prohibitions nor universal solutions.
- Professional assessment is useful for pain, functional limitations, pelvic-floor symptoms, suspected hernia or difficulty returning to desired activities.
The most meaningful outcome is not necessarily a gap that disappears completely. Regaining confidence in movement, progressing without concerning symptoms and receiving support that matches your goals may be far more useful than chasing a perfect number.
Sources and references
- Hernández-Granados P, et al. European Hernia Society guidelines on management of rectus diastasis. British Journal of Surgery, 2021.
- Benjamin DR, et al. Conservative interventions may have little effect on reducing diastasis of the rectus abdominis in postnatal women: systematic review and meta-analysis. Physiotherapy, 2023.
- Skoura A, et al. Diastasis Recti Abdominis Rehabilitation in the Postpartum Period: A Scoping Review of Current Clinical Practice. 2024.
- Moreira SE, Debs AL, de Oliveira EH, et al. Hypopressive exercises for diastasis recti and pelvic floor symptoms in postpartum women: A randomized trial. Brazilian Journal of Physical Therapy, 2026;30(3):101584. doi:10.1016/j.bjpt.2026.101584.
- Beamish NF, et al. Impact of postpartum exercise on pelvic floor disorders and diastasis recti abdominis: a systematic review and meta-analysis. British Journal of Sports Medicine, 2025.
- de Oliveira LC, et al. Effects of conservative approaches for treating diastasis recti abdominis in postpartum women: a systematic review and meta-analysis. 2025.
- Lyons G, et al. What is the evidence for abdominal and pelvic floor muscle training to treat diastasis recti abdominis postpartum?. 2026.
- Non-operative management of postpartum Diastasis Recti: a systematic review and meta-analysis of randomized controlled trials. 2026.
- Sokunbi G, et al. Is Diastasis Recti Abdominis Associated With Low Back Pain? A Systematic Review. 2023.
- Assurance Maladie. Accouchement et retour à domicile: prise en charge et accompagnement. 2026.
- Davenport MH, et al. 2025 Canadian guideline for physical activity, sedentary behaviour and sleep throughout the first year post partum. British Journal of Sports Medicine, 2025.
General information only. This article does not replace individual medical or physiotherapy assessment. Seek prompt professional advice for severe pain, a concerning abdominal mass, signs of postpartum complications or any other unusual symptom.
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